Bumper cars at an old amusement park in Pripyat, Ukraine, haven't collided with each other since April 26, 1986, when a series of explosions at a reactor of the Chernobyl power station three kilometers away caused the worst nuclear plant disaster in history. Workers raised the first section of a colossal arch-shaped structure that will eventually cover the remnants of the reactor.

A swimmer stays clear of a red algae bloom at Sydney's Clovelly Beach. While the algae, known as Noctiluca scintillans or sea sparkle, has no toxic effects, people are still advised to avoid it because of its potential for skin irritation.

Terry Ellrick hugs his mutt, Abbey, who's recovering at BluePearl Veterinary Partners in Tampa, Fla. Abbey was injured by a hit-and-run driver Nov. 16, but Ellrick was unable to pay for her surgery, so members of the community donated money for the operation.